musl - musl - an implementation of the standard library for Linux-based systems

Age	Commit message (Collapse)	Author	Lines
2012-03-16	Merge remote branch 'nsz/master'	Rich Felker	-216/+413

2012-03-15	remove special nan handling from x86 sqrt asm	Rich Felker	-3/+0
	a double precision nan, when converted to extended (80-bit) precision, will never end in 0x400, since the corresponding bits do not exist in the original double precision value. thus there's no need to waste time and code size on this check.
2012-03-15	simplify nan check in sqrt (x86 asm); result of sqrt is never negative	Rich Felker	-4/+3

2012-03-15	in math.h make lgamma_r and non-double bessel _GNU_SOURCE only	nsz	-0/+3
	long double and float bessel functions are no longer xsi extensions
2012-03-15	efficient sincos based on sin and cos	nsz	-0/+247

2012-03-15	avoid changing NaNs in sqrt (x86 asm) to satisfy c99 f.9 recommendation	Rich Felker	-0/+4

2012-03-15	correctly rounded sqrt() asm for x86 (i387)	Rich Felker	-0/+16
	the fsqrt opcode is correctly rounded, but only in the fpu's selected precision mode, which is 80-bit extended precision. to get a correctly rounded double precision output, we check for the only corner cases where two-step rounding could give different results than one-step (extended-precision mantissa ending in 0x400) and adjust the mantissa slightly in the opposite direction of the rounding which the fpu already did (reported in the c1 flag of the fpu status word). this should have near-zero cost in the non-corner cases and at worst very low cost. note that in order for sqrt() to get used when compiling with gcc, the broken, non-conformant builtin sqrt must be disabled.
2012-03-13	correct rounding for i387 sqrtf function	Rich Felker	-0/+2

2012-03-13	math cleanup: use 1.0f instead of 1.0F	nsz	-6/+6

2012-03-13	math cleanup: use 1.0f instead of (float)1.0	nsz	-96/+96

2012-03-13	remove libm.h includes when math.h and float.h are enough	nsz	-30/+47

2012-03-13	clean up __expo2.c, use a slightly better k constant	nsz	-84/+14

2012-03-13	implement nan, nanf, nanl	Rich Felker	-0/+18

2012-03-13	first commit of the new libm!	Rich Felker	-7726/+17926
	thanks to the hard work of Szabolcs Nagy (nsz), identifying the best (from correctness and license standpoint) implementations from freebsd and openbsd and cleaning them up! musl should now fully support c99 float and long double math functions, and has near-complete complex math support. tgmath should also work (fully on gcc-compatible compilers, and mostly on any c99 compiler). based largely on commit 0376d44a890fea261506f1fc63833e7a686dca19 from nsz's libm git repo, with some additions (dummy versions of a few missing long double complex functions, etc.) by me. various cleanups still need to be made, including re-adding (if they're correct) some asm functions that were dropped.
2011-06-30	fix error in previous ld80 fpclassify commit	Rich Felker	-1/+1

2011-06-30	catch invalid ld80 bit patterns and treat them as nan	Rich Felker	-2/+2
	this should not be necessary - the invalid bit patterns cannot be created except through type punning. however, some broken gnu software is passing them to printf and triggering dangerous stack-smashing, so let's catch them anyway...
2011-06-26	type directives for x86_64 math asm	Rich Felker	-0/+2

2011-06-26	use .type directives for math asm (needed for dynamic linking to work)	Rich Felker	-0/+26

2011-02-15	Port musl to x86-64. One giant commit!	Nicholas J. Kain	-0/+6

2011-02-12	initial check-in, version 0.5.0v0.5.0	Rich Felker	-0/+8566